Weight-motor.



No. 828,992. P ATENTED AUG. 21, 1906. P. P. YAPP & E. E ELLIS.

WEIGHT MOTOR. I

APPLICATION FILED APR. 28,1905.

Fig.2.

Fig. l.

wumvbo'zs Frank I. Yd/ JO, and EZmerE.EZZzls,

y a z wm UNITED PATENT OFFICE,

FRANK F. YAPP AND ELMER E. ELIAS, OF \VATERLOO, IOWA.

WEIGHT-MOTOR.

T0 at whont it Tlbtby concern:

Be it known that we, FRANK F. YAPP and ELMER E. ELLIS, citizens of the United States of America, and residents of Waterloo, Blackhawk county, Iowa, have invented certain new and useful Improvements in lVei ht- Motors, of which the following is a specification.

Our invention relates to improvements in weight-motors and the objects of our im provements are, first, to provide appropriate means for regularly and smoothly winding the cable in a uniform layer on the drum, and, second, to combine with the other mechanism means for sounding an alarm shortly previous to the paying out of the last coils of the cable. WVe have accomplished these objects by the means which are hereinafter shown and described and which are illustrated by the accompanying drawings, in which- Fi ure 1 is a side elevation of our improved weig t-motor; and Fig, 2 is a transverse sectional view of the same, taken on the line as ac in Fig. 1.

The winding-drum a has a crank c, and its shaft (1 is supported by the bracket 6. The cable 1) leads from the winding-drum a. over an overhead pulleyf, the latter having an interior thread provided in order to permit it to move longitudinally on the screw g. From the pulleyfsaid cable passes into the pulleyblocks 1 and m, the former being suspended from a cross-bar 7c and the latter being connected to a weight n. The screw 9 is fixed in blocks 71, fastened to the floor-joists.

At 8 we have shown the rojecting contactstud of an alarm-bell, the hell itself not being shown. A flat flexible or elastic spring-plate r is at one end attached to a fixed support, so as to permit of its free end overhanging the stud s.

The operation of our improved device is as follows: By means of the crank c the cable If is wound evenly and uniformly over the winding-drum a, lifting the weight n, We effect the winding of the cable in a regular layer by means of the pulleyf, which rotates as the cable passes over it. The pulley moves longitudinally along said screw as much distance in the same time as the width of the space uncovered on the windin -drum by the simultaneous payin out of t e cable as the weight n descends. The effect is the same in winding up, as then the pulley f moves in a reverse direction along the screw 9. The result Specification of Letters Patent.

Application filed April 28, 1905.

Patented Aug. 21, 1906.

Serial No. 257,798.

is to keep the portion of the cable I) which is between the pulleyf and the winding-drum a in a vertical direction, always perpendicular to the axis of the winding-drum. Consequently the winding will proceed, leaving the coils in contact side by side in a regular even layer without liability to overlap, which might cause a shearing of the cable at the point of overlapping. This improvement also does away with the necessity when winding up the weight of re ulating the coiling of the cable by hand, as t 1e action becomes automatic. Another improvement resides in the addition to the mechanism of an alarm, as shown at r s. As the weight descends toward its lowermost position the cable 1) uncoils until the pulleyf approaches closely to its limit of moven'ient in. one direction along the screw 9. When the pulleyf contacts with the spring-plate r, the latter gradually presses in the movable stud s, effecting a contact with a bell-alarm, the latter of which may be spring or otherwise actuated or operated by a battery. The bell or other alarm device may be located in any convenient part of the building, such as the kitchen, so as to give warning by its continued rin ing of the nearly unwound condition of the winding drum ct.

Having described our invention, what We claim as new, and desire to secure by Letters Patent, is

1. A weight-motor, comprising a windin drum, a shaft supported parallel to said win ing-drum, a pulley lengthwise movable along said shaft, a weight, and a cable extending from said winding-drum over said pulley to said weight.

2. A weight-motor, comprising a windingdrum, a screw fixed parallel therewith, a pu ley, interiorly threaded, adapted to move alon said screw, a weight, and a cable extending fiom said winding-drum over said pulley to said weight.

3. A weight-motor, comprisin a windingdrum, a shaft supported para lcl to said winding-drum, a pulley lengthwise movable along said shaft, a weight, a cable extending from said winding-drum over said pulley to said weight, and a device arranged to produce a warning-si nal by contact with said pulley when the ca )le on said winding-drum is nearly unwound.

4. A wcightmotor, com osing a windingdrum, a screw fixed paralle therewith, a pu Si ned at VVatnrloo, Iowa, this 14th day of 10 interiorly threaded, adapted to move Apri 1905.

FRANK F. YAPP.

along said screw, a weight, a cable extending from said winding-(1111111 over said pulley to said weight, and aklvvicc arranged to prod Line I ELMER E, ELLIS. it warning-signal by contact with said pulley \MLUIPSSOSI when the cable on said w1m1u1g-dn1111 18 J. F. ALBRECH'I,

nearly unwound. G. G. KENNEDY 

